ZaxF

iTrader: (3)

So, I'm down a good 6-7 mpg recently and I can't figure out why. When I put the k&n intake on , I got about a 1.5mpg boost in hwy driving. Added the tanabe exhaust with no change. My only update would be fsport sways and 20" wheels. I started noticing the decline before I added the wheels, so it can't be all from that and I know damn we'll sway bars won't change my mpg. The filter only has about 3000 miles since install, no where near the recommended cleaning time. Anyone else ever experience a sudden loss in MPG and if so, what did you find?

PS my driving habits are the same [fast], no change in typical routes back and forth to work, etc etc.

ZaxF

iTrader: (3)

Guess I should mention, car is up-to-date on all services, dealer performed, and has just shy of 81k on the odo

alchemist

iTrader: (1)

My sound crazy but have you checked your water pump? Did you have the valve spring recall done? What about vvti actuator gear recall?

worker

here are the usual suspect.

1) Weather.
------- tire pressure. Cold winter air reduce tire pressure. Need to pump it up.
------- And than the intake sucking in cold air.
------- and the longer warm up time.

2) traffic.
3) driver's mood. get better mpg if driver is calm and steady driving
4) winter gas. Some state has summer and winter mix.
5) ethanol... thanks your big brother government putting more ethanol into the gas.

and different of 5mpg is kinda fall within the margin.

ISFjimmy

iTrader: (5)

Maybe a throttle body cleaning. Also, maybe a fuel system cleaner.

ZaxF

iTrader: (3)

I'm waiting for parts to arrive for the VVT recall to be done and I'm not sure about the valve springs, need to have the dealer check that out and have them look into the water pump.

"5) ethanol... thanks your big brother government putting more ethanol into the gas."

If I like my gas can I keep it?

I'll stop and pick up a bottle of seafoam for my next tank and see if that helps.

Thanks for the insight!

Simmsled

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